MCP1640BT-I/CHY switching regulator

MCP1640/B/C/D Switching Regulators

0.65V Startup Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Options

MCP1640BT-I/CHY

MCP1640BT-I/CHY

MCP1640BT-I/CHY

feature

AEC-Q100 qualified

Typical efficiency up to 96%_Passed automotive AEC-Q100 reliability test

800 mA typical peak input current limit:

-IOUT>100 mA@1.2V VIN, 3.3V VOUT

-IOUT>350 mA@2.4V VIN, 3.3V VOUT

-IOUT>350 mA@3.3V VIN, 5.0V VOUT

Low startup voltage: 0.65V, typical 3.3V VOUT

@1mA

Low operating input voltage: 0.35V, typical 3.3V

Voltage@1mA

Adjustable Output Voltage Range: 2.0V to 5.5V

Maximum input voltage? Voltage output <5.5V

Automatic PFM/PWM operation (MCP1640/C):

PFM operation disabled (MCP1640B/D)

PWM operation: 500 kHz

Low Device Quiescent Current: 19µA, typical

PFM mode (without switching)

Internal Synchronous Rectifier

Internal compensation

Inrush current limit and internal soft-start

Optional logic-controlled shutdown states:

True load disconnect option (MCP1640/B)

Input to Output Bypass Option (MCP1640C/D)

Shutdown current (all states): <1µA

Low noise, anti-ringing control

Overheating protection

Available packages:

-6-wire SOT-23

-8-Wire 2mm x 3mm DFN

General Instructions

The MCP1640/B/C/D is a compact, high-efficiency,

Fixed Frequency, Synchronous Boost DC-DC

converter. It provides an easy-to-use power supply

Application solutions powered by a single battery,

Dual or triple battery alkaline, NiCd, NiMH and single-cell Li-Ion or Li-Polymer batteries.

Low Voltage Technology Allows Regulator to Start

No high inrush current or output voltage overshoot

from a low 0.65V input. high efficiency

Boost through integrated low-resistance N-channel

Switches and Synchronous P-Channel Switches. All compensation and protection circuits are integrated into

Minimize the number of external components. For standby applications, the MCP1640 consumes only

19µA at no-load operation and provides true

Disconnect input to output (EN=GND) on shutdown. Additional equipment options are available through:

Operates in PWM mode only and connects the input to

Output when the device is turned off.

"True" load disconnect mode provides input to output isolation while disabling the device by removing it

Normal boost regulator diode path from input to output. Input to output bypass mode option connects input to output using integrated low level

Resistive P-channel MOSFET that provides low bias voltage for circuits operating in deep sleep mode.

Both options consume less than 1µA of input current. The output voltage is set by a small external resistor

divider. Two package options are available, 6-pin SOT-23 and 8-lead 2 mm x 3 mm DFN. this

MCP1640/B/C/D are AEC-Q100 for automotive

application

Manufacturer: Microchip

Product Category: Switching Regulators

RoHS: Details

Installation style: SMD/SMT

Package/Case: SOT-23-6

Topology: Boost

Output voltage: 2 V to 5.5 V

Output current: 350 mA

Number of outputs: 1 Output

Input voltage (minimum): 350 mV

Input Voltage (Maximum): 5.5 V

Quiescent current: 19 uA

Switching frequency: 500 kHz

Minimum operating temperature: - 40 C

Maximum operating temperature: %2B 85 C

Qualification: AEC-Q100

Package: Reel

Package: Cut Tape

Package: MouseReel

Trademarks: Microchip Technology / Atmel

Load Regulation: 0.01 %_Product Type: Switching Voltage Regulators

3000

Subcategory: PMIC - Power Management ICs

Type: Switching Regulator

Unit weight: 36 mg